设置 EasyX 窗口解锁最大化按钮,支持调整窗口大小
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作者:huidong
| 分類:【編程】EasyX
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概要
使窗口支持调整大小
正文
2022.7.30
新版:(转 https://qa.codebus.cn/question/2260)
#include <windows.h> #include <graphics.h> #include <conio.h> #include <stdio.h> #include <time.h> bool change_size = false; int change_size_width; int change_size_height; WNDPROC EasyXProcess; LRESULT MyWindowProcess(HWND handle, UINT message, WPARAM wparam, LPARAM lparam) { switch (message) { case WM_SIZING: { RECT* rect = (RECT*)lparam; change_size = true; change_size_width = rect->right - rect->left - 18; change_size_height = rect->bottom - rect->top - 39; Resize(NULL, change_size_width, change_size_height); cleardevice(); FlushBatchDraw(); return 0; } } return EasyXProcess(handle, message, wparam, lparam); } int main() { initgraph(500, 300, SHOWCONSOLE); // 取消拖动改变大小限制 SetWindowLong(GetHWnd(), GWL_STYLE, GetWindowLong(GetHWnd(), GWL_STYLE) | (WS_MAXIMIZEBOX)); SetWindowLong(GetHWnd(), GWL_STYLE, (GetWindowLong(GetHWnd(), GWL_STYLE) | WS_THICKFRAME)); EasyXProcess = reinterpret_cast<WNDPROC>(GetWindowLongPtr(GetHWnd(), GWLP_WNDPROC)); SetWindowLongPtr(GetHWnd(), GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(MyWindowProcess)); // 计时器 time_t timer = clock(); setbkcolor(RGB(41, 42, 43)); BeginBatchDraw(); cleardevice(); FlushBatchDraw(); while (true) { Sleep (10); //if (clock() - timer >= 38) { // if (change_size == true) { // change_size = false; // // Resize(NULL, change_size_width, change_size_height); // cleardevice(); // FlushBatchDraw(); // } //} } EndBatchDraw(); _getch(); return 0; }
旧版:
#include <graphics.h> #include <conio.h> static WNDPROC OldProc; static WORD nWidth, nHeight; static bool size_flag = false; LRESULT CALLBACK NewProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch (message) { case WM_SIZE: { // 在EasyX默认的处理函数前先将窗口大小调整消息处理一次 nWidth = LOWORD(lParam); // width of elient area nHeight = HIWORD(lParam); // height of client area size_flag = true; } default: return CallWindowProc(OldProc, hWnd, message, wParam, lParam); } } HWND new_graph_window(int width, int height) { // 设置窗口样式,使窗口大小可调 HWND graphwindow = initgraph(width, height); LONG oldstyle = GetWindowLong(graphwindow, GWL_STYLE); SetWindowLong(graphwindow, GWL_STYLE, oldstyle | WS_MAXIMIZEBOX | WS_SIZEBOX); OldProc = (WNDPROC)GetWindowLong(graphwindow, GWL_WNDPROC); SetWindowLong(graphwindow, GWL_WNDPROC, (LONG)NewProc); return graphwindow; } int main() { new_graph_window(640,480); BeginBatchDraw(); nWidth = getwidth(); nHeight = getheight(); setbkcolor(WHITE); setfillcolor(BLACK); setlinecolor(BLACK); while (true) { if (size_flag) { Resize(NULL,nWidth,nHeight); size_flag = false; } cleardevice(); fillcircle(nWidth / 2, nHeight / 2, nWidth > nHeight ? nHeight / 2 : nWidth / 2); FlushBatchDraw(); } return 0; }
上述代码由如下帖吧稍加改动而成,可以直接编译运行。
https://tieba.baidu.com/p/6014139638?pid=123764910327&cid=0#123764910327